Five years ago, a woman had a one-night stand and secretly gave birth to a daughter, raising her alone while hiding her wealthy identity. Five years later, they reunite, but an impostor deceives everyone to enter the family. The woman becomes a cleaner in the company to stay near her daughter. They fall in love again, and through blood connection, the daughter senses he is her father. After misunderstandings, they marry, and the impostor is jailed.
